Baker Hughes on Friday reported that the number of active U.S. rigs drilling for oil fell by 7 to 684 this week. That followed declines in each of the last two weeks. The total active U.S. rig count, meanwhile, also fell by 5 to 817, according to Baker Hughes. December West Texas Intermediate crude was up 3 cents, or 0.05%, at $57.18 a barrel, little changed from before the rig data.Market Pulse Stories are Rapid-fire, short news bursts on stocks and markets as they move. Visit MarketWatch.com for more information on this news.